Sheath for a chisel



FIG. 1 is a front view of the sheath for a chisel;

FIG. 2 is a rear view thereof;

FIG. 3 is a left view thereof;

FIG. 4 is a right view thereof;

FIG. 5 is a top view thereof;

FIG. 6 is a bottom view thereof; and,

FIG. 7 is a perspective view thereof.

The broken lines of a chisel and tape measure in FIG. 7 depict environment and do not form part of the claimed design. 

CLAIM We claim the ornamental design for a sheath for a chisel, as shown and described. 